| 摘要 |
PROBLEM TO BE SOLVED: To provide a small pump enhanced in pump performance. SOLUTION: The water sucking piping 211 of a second case 21 in the pump is constituted of first piping 2111 extended along an axial direction, second piping 2112 extended along a direction perpendicular to the axial direction, and a curved part 2113 connecting the first piping 2111 and the second piping 2112. A size of a diameter connecting the outer peripheral wall 211a and the inner peripheral wall 211b of the water sucking piping 211 in the shortest distance is equal in respective positions of the first piping 2111, the second piping 2112 and the curved part 2113. COPYRIGHT: (C)2009,JPO&INPIT
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